4743419

RMI-IIOP clients will not work for IPv6 addresses where DNS address lookups fail for the IPv6 address.

If a DNS lookup for an IPv6 address fails, clients of Remote Method Invocation-Internet Inter-ORB Protocol (RMI-IIOP) will not work for IPv6 addresses. 

Solution

Domain Name Service (DNS) should be set up at the deployment site in order to look up an IPv6 address. 

5017470

Default IIOP port numbers assigned by the Application Server are randomly generated.

When a new ORB listener or IIOP endpoint is created, the IIOP Port value varies, depending on whether one is creating an ORB Listener or IIOP Endpoint. 

1. Creating a new ORB Listener > The IIOP port value cannot be left blank, though the * that signifies a ’must-specify’ entry is not present. The default value shown is 1072, although the listener port value for the default listener created during server installation is 3700.

2. Creating a new IIOP Endpoint > The default IIOP port value shown is 3600. If an endpoint is created with the port value left blank, an IIOP endpoint is created with IIOP port value null.

3. If an new server instance is created, the default ORB listener port value is an arbitrarily high value, usually > 30000.

Solution

IIOP port values should not exceed 32767. If the values configured are outside this range, a connection failure occurs during failover. When configuring the IIOP listener for the server, ensure that the port values are within this range.